package site.wtcc.originalfavor.func.common.utils;

import lombok.extern.slf4j.Slf4j;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;

/**
 * @author hxd
 * @Description: 对象合并工具类
 */
@Slf4j
public class CombineBeansUtil {
    /**
     * * 该方法是用于相同对象不同属性值的合并<br>
     * * 如果两个相同对象中同一属性都有值，那么sourceBean中的值会覆盖tagetBean重点的值<br>
     * * 如果sourceBean有值，targetBean没有，则采用sourceBean的值<br>
     * * 如果sourceBean没有值，targetBean有，则保留targetBean的值
     *
     * @param sourceBean 被提取的对象bean
     * @param targetBean 用于合并的对象bean
     * @return targetBean, 合并后的对象
     */
    public static <T> T combineSydwCore(T sourceBean, T targetBean) {
        Class<? extends Object> sourceBeanClass = sourceBean.getClass();
        Class<? extends Object> targetBeanClass = targetBean.getClass();

        Field[] sourceFields = sourceBeanClass.getDeclaredFields();
        Field[] targetFields = targetBeanClass.getDeclaredFields();
        for (int i = 0; i < sourceFields.length; i++) {
            Field sourceField = sourceFields[i];
            if (Modifier.isStatic(sourceField.getModifiers())) {
                continue;
            }
            Field targetField = targetFields[i];
            if (Modifier.isStatic(targetField.getModifiers())) {
                continue;
            }
            sourceField.setAccessible(true);
            targetField.setAccessible(true);
            try {
                if (!(sourceField.get(sourceBean) == null) && !"serialVersionUID".equals(sourceField.getName().toString())) {
                    targetField.set(targetBean, sourceField.get(sourceBean));
                }
            } catch (Exception e) {
                log.error("combineSydwCore Exception", e);
            }
        }
        return targetBean;
    }
}
